Flickr appears to be the first of what you’d call a “major” website to employ a meta tag that keeps copyright-protected images from being pinned on Pinterest.
As VentureBeat first reported, Flickr is using the “nopin” meta tag that Pinterest just introduced earlier this week. When Pinterest sees the tag on a web page, none of the photos can be pinned directly from the page.
Interesting (pinteresting?) to note that despite the tag, if you’re logged in to Flickr, you can still pin your own photos — no matter what your privacy settings are.